1. Institute
of Macromolecular Compounds, Russian Academy of Sciences, Bol’shoi
pr. 31 (V.O.), 199004 St. Petersburg, Russia
2. Theory
of Polymers and Soft Matter Group, Technische Universiteit Eindhoven, PO Box 513, 5600 MB, Eindhoven, The Netherlands
3. Materials
Science and Technology Centre, University of Perugia, Loc. Pentima,
4, 05100 Terni, Italy